Measurement Computing PCIe-DIO24 User manual

PCIe-DIO24
Digital Input/Output
Document Revision 2A
September 2014
©Copyright 2014
User's Guide

HM PCIe-DIO24.docx
Trademark and Copyright Information
Measurement Computing Corporation, InstaCal, Universal Library, and the Measurement Computing logo are
either trademarks or registered trademarks of MeasurementComputing Corporation. Refer to the Copyrights &
Trademarks section on mccdaq.com/legal for more information about Measurement Computing trademarks.
Other product and company namesmentioned herein are trademarks or trade names of their respective
companies.
©2014 MeasurementComputingCorporation. All rights reserved. No part of this publicationmay be
reproduced, stored in a retrieval system, or transmitted, in any form by any means, electronic,mechanical, by
photocopying, recording, or otherwise without the prior written permission of Measurement Computing
Corporation.
Notice
Measurement Computing Corporation does not authorize any Measurement Computing Corporation product for
use in life support systems and/or devices without prior written consent from Measurement Computing
Corporation. Life support devices/systems are devices or systems that, a) are intended for surgical implantation
into the body, or b) support or sustain life and whose failure to perform can be reasonably expected to result in
injury. Measurement Computing Corporation products are not designed with the components required, and are
not subject to the testing required to ensure a level of reliability suitable for the treatment and diagnosis of
people.

3
Table of Contents
Preface
About this User's Guide .......................................................................................................................4
Conventions in this user's guide .........................................................................................................................4
Where to find more information .........................................................................................................................4
Chapter 1
Introducing the PCIe-DIO24 .................................................................................................................5
Overview: PCIe-DIO24 features ........................................................................................................................5
Functional block diagram ...................................................................................................................................6
Chapter 2
Installing the PCIe-DIO24 .....................................................................................................................7
What comes with your shipment?.......................................................................................................................7
Hardware .......................................................................................................................................................................... 7
Software............................................................................................................................................................................ 7
Documentation.................................................................................................................................................................. 7
Optional components ........................................................................................................................................................ 7
Unpacking the PCIe-DIO24 ...............................................................................................................................7
Installing the software ........................................................................................................................................7
Installing the hardware .......................................................................................................................................8
Signal connections..............................................................................................................................................8
Connector pinout............................................................................................................................................................... 8
Cabling.............................................................................................................................................................................. 9
Field wiring and signal termination .................................................................................................................................10
Chapter 3
Functional Details ...............................................................................................................................11
82C55 emulation...............................................................................................................................................11
Replacing a fuse................................................................................................................................................11
Fuse specifications...........................................................................................................................................................11
Logic level switch.............................................................................................................................................11
Chapter 4
Specifications......................................................................................................................................12
Digital input/output...........................................................................................................................................12
Power consumption ..........................................................................................................................................12
Environmental ..................................................................................................................................................13
Mechanical .......................................................................................................................................................13
Bus....................................................................................................................................................................13
Signal connector ...............................................................................................................................................13
Declaration of Conformity ..................................................................................................................15

4
Preface
About this User's Guide
This user's guide describes the Measurement Computing PCIe-DIO24 data acquisition device and lists device
specifications.
Conventions in this user's guide
For more information
Text presented in a box signifies additional information related to the subject matter.
Caution! Shaded caution statements present information to help you avoid injuring yourself and others,
damaging your hardware, or losing your data.
bold text Bold text is used for the names of objects on a screen, such as buttons, text boxes, and check boxes.
italic text Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase.
Where to find more information
Additional information about PCIe-DIO24 hardware is available on our website at www.mccdaq.com. You can
also contact Measurement Computing Corporation with specific questions.
Knowledgebase: kb.mccdaq.com
Tech support form: www.mccdaq.com/support/support_form.aspx
Email: [e-mail]
Phone: [phone] and follow the instructions for reaching Tech Support
If you need to program at the register level in your application, refer to the Register Map for the PCIe-DIO24.
This document is available on our website at www.mccdaq.com/registermaps/RegMapPCIe-DIO24.pdf.

5
Chapter 1
Introducing the PCIe-DIO24
Overview: PCIe-DIO24 features
This manual explains how to install and use the PCIe-DIO24 board. The PCIe-DIO24 is a digital I/O board
designed for the PCI Express (PCIe) bus.
The PCIe-DIO24 provides 24 lines of digital I/O with selectable 3.3 V and 5 V logic levels. The 24 DIO lines
are organized into three groups of 8-bits each (Port A, Port B, and Port C). Port C can be further divided into
two four-bit ports (Port C-HI and Port C-LO). The direction of each port is independently configurable with
software for either input or output. Digital outputs are HC logic and can source and sink 2.5 mA.
The PCIe-DIO24 has a 10 k resistor network associated with each digital port. You can configure each port for
pull-up or pull-down with software. On power up and reset the configuration of each port is read from
EEPROM. The board is shipped with each port configured in the pull-up state.
The PCIe-DIO24 emulates the 82C55 Programmable Peripheral Interface (PPI) chip. Measurement
Computing's Universal Library and Windows driver supports mode 0 only.
Digital I/O lines are accessible through a 37-pin D-type connector. The board has two individual slow blow
fuses rated at 0.375 amp to protect the +VDIO and +12V outputs on the connector. One spare fuse is provided.
Software programs written with the Universal Library for the USB-DIO24/37, PCI-DIO24 and CIO-DIO24
devices are fully compatible with the PCIe-DIO24.
Power is provided by the PCI Express slot. The PCIe-DIO24 board is completely plug-and-play. All board
addresses are set by the board's plug-and-play software. Board configuration is controlled by your system's
BIOS.

PCIe-DIO24 User's Guide Introducing the PCIe-DIO24
6
Functional block diagram
PCIe-DIO24 functions are illustrated in the block diagram shown here.
Figure 1. PCIe-DIO24 functional block diagram
Boot
EEPROM
37-pin I/O Connector
Fuse
Protection
8
8
4
4
8
PORT A
PCI-to-Local
Bus
BADR2
+
BADR3
Bus
Timing
LAD(0:7)
8
PCI Express Edge Connector
x1 Link
PCIe-to-PCI
Bridge
PCI Bus
3.3V
3.3V
1.5V
Regulator
3.3V, 32-bit, 66 MHz
+V
Regulated
DIO
Local
Address
&
Data Bus
3.3V Board Power
Interface
Decode/Status
82C55 Emulation
Logic, Control,
Complex,
Programmable
Logic Device
(CPLD)
User
3.3/5V
I/O Switch
5V
(VDD)
3.3 V
PORT A
Buffering
3.3/5V
Direction CTR
PORT B
Buffering
PORT CL
Buffering
PORT CH
Buffering
PORT B
3.3/5V
Direction CTR 8
PORT CL
3.3/5V
Direction CTR 4
PORT CH
3.3/5V
Direction CTR 424
4
Direction
Control
GND
4
EEPROM
switch
+5V (VDD)
10 k
Pull
Resistor
Network
Ω
Buffer
4
Spare Fuse
V and 12V
DIO
+V
(pin 18)
DIO
+V
DIO
(pin 20)
+12V
(pin 16)
IRQ Input
IRQ Enable
+5 (VDD) 5V
Regulator
Fuse
Protection
+12V
V
DIO

7
Chapter 2
Installing the PCIe-DIO24
What comes with your shipment?
The following items are shipped with the PCIe-DIO24:
Hardware
PCIe-DIO24
Software
MCC DAQ CD
Documentation
MCC DAQ Quick Start
This booklet provides an overview of the MCC DAQ software you received with the device, and includes
information about installing the software. Please read this booklet completely before installing any software
or hardware.
Optional components
Cables
oC37FF-x
oC37FFS-x
Signal termination and conditioning accessories
Measurement Computing provides signal termination products for use with the PCIe-DIO24. Refer to the
section "Field wiring and signal termination" on page 10 for compatible accessory products
Unpacking the PCIe-DIO24
As with any electronic device, you should take care while handling to avoid damage from static
electricity. Before removing the PCIe-DIO24 from its packaging, ground yourself using a wrist strap or by
simply touching the computer chassis or other grounded object to eliminate any stored static charge.
If any components are missing or damaged, contact us immediately using one of the following methods:
Knowledgebase: kb.mccdaq.com
Tech support form: www.mccdaq.com/support/support_form.aspx
Email: [e-mail]
Phone: [phone] and follow the instructions for reaching Tech Support
For international customers, contact your local distributor. Refer to the International Distributors section on our
website at www.mccdaq.com/International.
Installing the software
Refer to the MCC DAQ Quick Start for instructions on installing the software on the MCC DAQ CD. This
booklet is available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf.

PCIe-DIO24 User's Guide Installing the PCIe-DIO24
8
Installing the hardware
The PCIe-DIO24 is completely plug-and-play. Configuration is controlled by your system's BIOS. To install
your board, follow the steps below.
Install the MCC DAQ software before you install your board
The driver needed to run your board is installed with the MCC DAQ software. Therefore, you need to install the
MCC DAQ software before you install your board. Refer to the Quick Start Guide for instructions on installing
the software.
1. Power off and unplug the computer, and remove the cover to expose the expansion slots.
2. Touch any metal part of the computer to discharge static electricity that may be present. Static electricity
can damage the board.
3. Insert the PCIe-DIO24 into an unused x1 PCIe expansion slot.
The PCIe-DIO24 is designed to install into an x1 slot. However, you can also install the board into an
unused x4, x8, or x16 PCIe slot.
Caution! Ensure that you install the board into a PCIe slot. Installing the PCIe-DIO24 into a non-PCIe slot
can damage both the board and the computer’s motherboard.
4. Close your computer and turn it on.
A dialog box opens as the system loads, indicating that new hardware has been detected. The information
file for this board should have already been loaded onto your PC when you installed the Measurement
Computing Data Acquisition Software CD supplied with your board, and should be detected automatically
by Windows. If you have not installed this software, cancel the dialog and install it now.
5. Run InstaCal to test your installation and to configure the pull direction of the digital port resistors.
Refer to the Quick Start Guide that came with your board for information on how to initially set up
InstaCal.
Signal connections
The table below lists the board I/O connector, applicable cables and compatible accessory boards.
Board connectors, cables, accessory equipment
Connector type 37-pin D-type
Compatible cables C37FF-x unshielded ribbon cable. x = length in feet. (see Figure 3)
C37FFS-x cable shielded round cable. x = length in feet. (see Figure 4)
Compatible accessory products
(with the C37FF-x or C37FFS-x cable)
SCB-37
CIO-MINI37
CIO-MINI37-VERT
CIO-ERB08
CIO-SERB08
CIO-ERB24
SSR-RACK08
SSR-RACK24
Connector pinout
The I/O connector is a 37-pin, male D-type connector accessible from the rear of the computer through the
expansion backplate. The signals available are direct connections to the digital I/O chips as well as the
computer's internal power supplies. The logic level switch sets the logic level for either 3.3V or 5V; refer to
page 11 for switch information.

PCIe-DIO24 User's Guide Installing the PCIe-DIO24
9
Figure 2. I/O connector
* The board has two individual slow blow fuses rated at 1 A. One fuse protects the 12V output at pin 16, and
one fuse protects both +VDIO outputs at pin 18 and pin 20.
Cabling
Figure 3. C37FF-x cable
+V * 20
GND 21
PORT C7 22
PORT C6 23
PORT C5 24
PORT C4 25
PORT C3 26
PORT C2 27
PORT C1 28
PORT C0 29
PORT A7 30
PORT A6 31
PORT A5 32
PORT A4 33
PORT A3 34
PORT A2 35
PORT A1 36
PORT A0 37
DIO
1 IRQ INPUT
2 IRQ ENABLE
3 PORT B7
4 PORT B6
5 PORT B5
6 PORT B4
7 PORT B3
8 PORT B2
9 PORT B1
10 PORT B0
11 GND
12 Open
13 GND
14 Open
15 GND
16 +12V*
17 GND
18 +V *
19 GND
DIO
Logic level
switch
+5V
3V
20
1
37
19
20
1
37
19
The red stripe
identifies pin # 1

PCIe-DIO24 User's Guide Installing the PCIe-DIO24
10
Figure 4. C37FFS-x cable
Field wiring and signal termination
You can use the following MCC screw terminal boards and relay racks with the PCIe-DIO24 board using the
C37FF-xor C37FFS-x cable:
SCB-37 – 37-conductor, shielded signal connection/screw terminal box that provides two independent 37-
pin connections.
CIO-MINI37 – 4 x 4, 37-pin screw terminal board.
CIO-MINI37-VERT – 37-pin screw terminal accessory with vertical 37-pin male D connector. Details on
this product are available on our website at
www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=102&pf_id=256.
SSR-RACK24 – 24-position solid state relay rack.
SSR-RACK08 – Eight-channel solid state relay rack.
CIO-ERB08 – Eight-channel electromechanical relay accessory for digital I/O boards.
CIO-SERB08 – Eight Form C and ten socketed relay accessory for digital I/O boards.
CIO-ERB24 – 24-channel electromechanical relay accessory for digital I/O boards.
For additional information about digital interfacing
Detailed information regarding digital interfacing is contained in MCC's Guide to Signal Connections. This
document is available on our website at www.measurementcomputing.com/signals/signals.pdf.
20
1
37
19
20
1
37
19

11
Chapter 3
Functional Details
82C55 emulation
The PCIe-DIO24 emulates the 82C55 Programmable Peripheral Interface (PPI) chip. Measurement
Computing's Universal Library and Windows driver supports mode 0 only.
Whenever the board is powered on or reset, all pins are set to high-impedance input. Based on standard TTL
functionality, these inputs typically float high, and may have enough drive current to turn on external devices.
Consequently, if you have output devices such as solid state relays, they may be switched on whenever the
computer is powered on or reset. To prevent unwanted switching, and to drive all outputs to a known state after
power on or reset, configure each port resistor with InstaCal.
Unconnected inputs float to the pull direction
Unconnected inputs will float in the pull direction that is configured for the port with InstaCal (either up/high or
down/low).
Replacing a fuse
The PCIe-DIO24 has two individual 0.375 amp slow blow fuses. One fuse is connected to the 12V output at pin
16, and is labeled F7 on the board. The second fuse is connected to both +VDIO outputs at pin 18 and pin 20, and
is labeled F6 on the board. A spare fuse is installed on the board at location F4. All fuses are secured to the
board with clips for convenient replacement.
A fuse will blow during operation if amperage exceeds 0.375 amp. If you need to replace a fuse, perform the
following procedure.
1. Hold the center of the blown fuse and pry it from the fuse holder clip.
2. Insert the replacement fuse into the fuse holder clip.
Fuse specifications
Refer to the information below to purchase additional fuses, if required:
Manufacturer: LittelFuse®
Type: 452 Series NANO2® Slo-Blo®Subminiature Surface Mount Fuse
Part number: 0452.375
0.375 amp, 125 volts, 1.2 Ω
Logic level switch
Use switch S1 to set the logic level for either 3.3V or 5V (default). The switch is located above the I/O
connector (see Figure 2 on page 9).
Figure 5. Logic level select switch
3.3V
5V
S1

12
Chapter 4
Specifications
All specifications are subject to change without notice.
Typical for 25 °C unless otherwise specified.
Digital input/output
Table 1. Digital I/O specifications
Parameter Specification
Digital type 82C55 Emulation
Configuration 2 banks of 8, 2 banks of 4, programmable by bank as input or output
Output Ports A and B: 74HC245A
Port C: 74HC126
Input Ports A and B: 74HC245A
Port C: 74HC125
Number of channels 24 I/O
Switch state Board silk screen reference: S1 – Default +5V
Output high
3.3 V
2.8 volts min @ -2.5 mA
Output low 0.3 volts max @ 2.5 mA
Input high 2.6 volts min, 3.6 volts absolute max
Input low 1.3 volts max, -0.5 volts absolute min
Output high
5 V
4.5 volts min @ -2.5 mA
Output low 0.3 volts max @ 2.5 mA
Input high 2.6 volts min, 5.5 volts absolute max
Input low 1.3 volts max, -0.5 volts absolute min
Power-up /reset state Input mode (10 kΩimpedance from pull-up or pull-down)
Pull-up/pull-down resistors EEPROM stored; software programmable driven by 74ACT244 through 10 kΩbussed
resistor networks (shipped in the pull-up state)
Interrupt enable External (IRQ ENABLE, active low, disabled by default through internal resistor to TTL
high) and programmable through PCI9030; 0 = disabled, 1 = enabled (default)
Interrupt sources External source (IRQ INPUT), polarity programmable through PCI9030;
1 = active high, 0 = active low (default)
Power consumption
Table 2. Power consumption specifications
Parameter Specification
+3.3 V operating 515 mA typ
+3.3 V with 5 V I/O 520 mA typ
+VDIO User output 125 mA max @ +5V; 375 mA max @ +3.3 V
Fuses
+VDIO User output and +12 V:
Littelfuse 0.375A NANO2® Slo-Blo®Subminiature Surface Mount Fuse; art number
0452.375

PCIe-DIO24 User's Guide Specifications
13
Environmental
Table 3. Environmental specifications
Parameter Specification
Operating temperature range 0 °C to 50 °C
Storage temperature range –20 °C to 70 °C
Humidity 0% to 90% non-condensing
Mechanical
Table 4. Environmental specifications
Parameter Specification
Dimensions (L × W × H) 167.4 × 111.2 × 18.72 mm (6.60 × 4.38 × 0.74 in.)
Bus
Table 5. Bus specifications
Parameter Specification
Bus Type PCI Express 1.1
Bus Width x1 lane PCI Express
Signal connector
Table 6. Main connector specifications
Parameter Specification
Connector type 37-pin D-type
Compatible cables C37FF-x unshielded ribbon cable. x = length in feet.
C37FFS-x cable shielded round cable. x = length in feet.
Compatible accessory products
(with the C37FF-x or
C37FFS-x cable)
SCB-37
CIO-MINI37
CIO-MINI37-VERT
Compatible accessory products
with S1 in the +5 V
position(with the C37FF-x or
C37FFS-x cable)
CIO-ERB08
CIO-SERB08
CIO-ERB24
SSR-RACK08
SSR-RACK24

PCIe-DIO24 User's Guide Specifications
14
Table 7. Signal connector pinout
Pin Signal Name Pin Signal Name
1 IRQ INPUT 20 +VDIO (Note 1)
2 IRQ ENABLE 21 GND
3 Port B7 22 Port C7
4 Port B6 23 Port C6
5 Port B5 24 Port C5
6 Port B4 25 Port C4
7 Port B3 26 Port C3
8 Port B2 27 Port C2
9 Port B1 28 Port C1
10 Port B0 29 Port C0
11 GND 30 Port A7
12 OPEN 31 Port A6
13 GND 32 Port A5
14 OPEN 33 Port A4
15 GND 34 Port A3
16 +12V (Note 1) 35 Port A2
17 GND 36 Port A1
18 +VDIO (Note 1) 37 Port A0
19 GND
Note 1: Protected by slow blow fuses rated at 0.375 A. One fuse protects pin 16 (+12V), and the second fuse
protects pin 18 (+VDIO) and pin 20 (+VDIO).

Declaration of Conformity
According to ISO/IEC 17050-1:2010
Manufacturer: Measurement Computing Corporation
Address: 10 Commerce Way
Suite 1008
Norton, MA 02766
USA
Product Category: Electrical equipment for measurement, control and laboratory use.
Date and Place of Issue: September 12, 2014, Norton, Massachusetts USA
Measurement Computing Corporation declares under sole responsibility that the product
PCIe-DIO24
Complies with the essential requirements of the following applicable European Directives:
Electromagnetic Compatibility (EMC) Directive 2004/108/EC
Low Voltage Directive 2006/95/EC
RoHS Directive 2011/65/EU
Conformity is assessed in accordance to the following standards:
EMC:
Emissions:
EN 61326-1:2006 (IEC 61326-1:2005), Class A
EN 55011: 2007 (IEC CISPR 11:2003), Group 1, Class A
Immunity:
EN 61326-1:2006 (IEC 61326-1:2005), Controlled EM Environments
EN 61000-4-2:2001 (IEC 61000-4-2:2001)
EN 61000-4-3 :2002 (IEC61000-4-3:2002)
EN 61000-4-4 :2004 (IEC61000-4-4:2004)
EN 61000-4-5 :2001 (IEC61000-4-5:2001)
EN 61000-4-6 :2007 (IEC61000-4-6:2003)
EN 61000-4-11:2004 (IEC61000-4-11:2004)
Safety:
EN610101-1 (IEC61010-1)
Environmental Affairs:
Articles manufactured on or after the Date of Issue of this Declaration of Conformity do not
contain any of the restricted substances in concentrations/applications not permitted by the RoHS
Directive.
Carl Haapaoja, Director of Quality Assurance

Measurement Computing Corporation
10 Commerce Way
Suite 1008
Norton, Massachusetts 02766
[phone]
Fax: [phone]
E-mail: [e-mail]
www.mccdaq.com